EP1314858A3 - Frangible bearing support for a turbomachine rotor - Google Patents

Frangible bearing support for a turbomachine rotor Download PDF

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Publication number
EP1314858A3
EP1314858A3 EP02024038A EP02024038A EP1314858A3 EP 1314858 A3 EP1314858 A3 EP 1314858A3 EP 02024038 A EP02024038 A EP 02024038A EP 02024038 A EP02024038 A EP 02024038A EP 1314858 A3 EP1314858 A3 EP 1314858A3
Authority
EP
European Patent Office
Prior art keywords
bearing support
bearing
circumference
evenly distributed
clamping screws
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02024038A
Other languages
German (de)
French (fr)
Other versions
EP1314858B1 (en
EP1314858A2 (en
Inventor
Wolfgang Dr. Diepolder
Bernhard Dr. Wöhrl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1314858A2 publication Critical patent/EP1314858A2/en
Publication of EP1314858A3 publication Critical patent/EP1314858A3/en
Application granted granted Critical
Publication of EP1314858B1 publication Critical patent/EP1314858B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D9/00—Couplings with safety member for disconnecting, e.g. breaking or melting member
    • F16D9/04—Couplings with safety member for disconnecting, e.g. breaking or melting member by tensile breaking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • F05B2260/3011—Retaining bolts or nuts of the frangible or shear type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

Die Erfindung betrifft eine Drehlagerung (10) mit einer Sollbruchstelle (14), insbesondere für einen Rotor (16) einer Strömungsmaschine, welche ein zwischen einem nicht-rotierenden Lagerträger (26) und einem rotierenden Lagerträger (24) angeordnetes Drehlager (12) aufweist. Der nicht-rotierenden Lagerträger (26) ist geteilt und weist zwei senkrecht zur Rotationsachse (22) des Drehlagers (12) angeordnete Trennflächen (28 a, 28 b) auf. In mehreren über den Umfang des Lagerträgers (26) gleichmäßig verteilten und in den Trennflächen (28 a, 28 b) paarweise axial gegenüberstehenden Führungsflächen (34a, 34b) sind Führungskörper (36) eingebracht. Über mehrere über den Umfang des Lagerträgers (24) gleichmäßig verteilte axialorientierte Spannschrauben (32) mit vorbestimmter Zugfestigkeit sind beide Trennflächen (28 a, 28 b) spielfrei in Anlage gehalten. Eine an dem Lagerträger (26) angreifende Lagerkraft (44) erfährt durch das Zusammenwirken von Führungsflächen und Führungskörper (36) eine Umlenkung in eine axiale Zugkraft (48), so dass bei Überschreiten einer definierten maximalen Zugkraft in den Spannschrauben (32) diese brechen.

Figure imgaf001
The invention relates to a rotary bearing (10) having a predetermined breaking point (14), in particular for a rotor (16) of a turbomachine, which has a pivot bearing (12) arranged between a non-rotating bearing support (26) and a rotating bearing support (24). The non-rotating bearing support (26) is divided and has two perpendicular to the rotation axis (22) of the pivot bearing (12) arranged separating surfaces (28 a, 28 b). In several over the circumference of the bearing support (26) evenly distributed and in the parting surfaces (28 a, 28 b) in pairs axially opposite guide surfaces (34 a, 34 b) guide body (36) are introduced. Over several over the circumference of the bearing support (24) evenly distributed axially oriented clamping screws (32) with a predetermined tensile strength both separation surfaces (28 a, 28 b) held without play in investment. A bearing force (44) acting on the bearing carrier (26) experiences a deflection into an axial tensile force (48) through the interaction of guide surfaces and guide body (36) so that when a defined maximum tensile force in the clamping screws (32) is exceeded, they break.
Figure imgaf001
EP02024038A 2001-11-23 2002-10-28 Frangible bearing support for a turbomachine rotor Expired - Lifetime EP1314858B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157576A DE10157576C2 (en) 2001-11-23 2001-11-23 Pivot bearing with a predetermined breaking point
DE10157576 2001-11-23

Publications (3)

Publication Number Publication Date
EP1314858A2 EP1314858A2 (en) 2003-05-28
EP1314858A3 true EP1314858A3 (en) 2007-08-29
EP1314858B1 EP1314858B1 (en) 2009-01-28

Family

ID=7706766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02024038A Expired - Lifetime EP1314858B1 (en) 2001-11-23 2002-10-28 Frangible bearing support for a turbomachine rotor

Country Status (3)

Country Link
EP (1) EP1314858B1 (en)
DE (2) DE10157576C2 (en)
ES (1) ES2320325T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0216312D0 (en) * 2002-07-12 2002-08-21 Rolls Royce Plc Frangible coupling
DE10344869B3 (en) * 2003-09-26 2005-06-30 Man B&W Diesel A/S safety clutch
DE102010012228B4 (en) * 2010-03-19 2021-01-14 Rolls-Royce Deutschland Ltd & Co Kg Jet engine with a predetermined breaking point device for overload
US8573922B2 (en) 2010-06-15 2013-11-05 Rolls-Royce Corporation Bearing support
DE102011087720A1 (en) * 2011-12-05 2013-06-06 Schaeffler Technologies AG & Co. KG Security element for use with rotation drive and component i.e. bearing, in centrifuge test stand for examining coupling part, has base body comprising breaking point that is broken during defined force, where point is arranged between ends
FR3005097B1 (en) * 2013-04-30 2017-07-28 Snecma BEARING SUPPORT FOR A TURBOMACHINE COMPRISING A DECAL FLANGE
FR3006713B1 (en) * 2013-06-11 2016-10-14 Snecma DECOUPLING DEVICE FOR TURBOMACHINE COMPRISING AN INTERMEDIATE PIECE
DE102013216598B4 (en) 2013-08-21 2016-12-22 MTU Aero Engines AG Securing device for a bearing arrangement of a rotor of a turbomachine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7440064U (en) * 1975-04-24 Herion Werke Kg Device for amplifying a mechanical force
DE2510793A1 (en) * 1974-03-12 1975-09-18 Siemens Ag Alarm switch slidable switching element actuator - has transverse operating element with force transmission to move switching element
US3927537A (en) * 1974-08-01 1975-12-23 Zurn Ind Inc Overload coupling
GB2130340A (en) * 1981-03-28 1984-05-31 Rolls Royce Gas turbine rotor assembly
GB2281105A (en) * 1993-08-21 1995-02-22 Westland Helicopters Bearing assembly
GB2322914A (en) * 1997-03-05 1998-09-09 Rolls Royce Plc Gas turbine engine with emergency bearing support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212834C (en) *
DE866580C (en) * 1943-02-07 1953-02-12 Wagner & Co Werkzeugmaschinenf Safety coupling with breaking pins subjected to tensile stress
GB2043833B (en) * 1979-03-17 1982-11-10 Rolls Royce Rotor assembly
DE19605971C2 (en) * 1996-02-17 1998-09-17 Mtu Muenchen Gmbh Bearing arrangement for rotating bodies

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7440064U (en) * 1975-04-24 Herion Werke Kg Device for amplifying a mechanical force
DE2510793A1 (en) * 1974-03-12 1975-09-18 Siemens Ag Alarm switch slidable switching element actuator - has transverse operating element with force transmission to move switching element
US3927537A (en) * 1974-08-01 1975-12-23 Zurn Ind Inc Overload coupling
GB2130340A (en) * 1981-03-28 1984-05-31 Rolls Royce Gas turbine rotor assembly
GB2281105A (en) * 1993-08-21 1995-02-22 Westland Helicopters Bearing assembly
GB2322914A (en) * 1997-03-05 1998-09-09 Rolls Royce Plc Gas turbine engine with emergency bearing support

Also Published As

Publication number Publication date
ES2320325T3 (en) 2009-05-21
DE10157576A1 (en) 2003-06-12
DE10157576C2 (en) 2003-11-06
EP1314858B1 (en) 2009-01-28
EP1314858A2 (en) 2003-05-28
DE50213253D1 (en) 2009-03-19

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